JP3914833B2 - Musical stand device for keyboard instruments - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is applied to a keyboard musical instrument having a keyboard lid, such as an electronic organ, and relates to a musical instrument stand device using the keyboard lid as a musical score stand.
[0002]
[Prior art]
FIG. 3A is a side sectional view showing an upper part of a keyboard instrument (electronic organ) to which a conventional music stand device is applied. As shown in FIG. 1, the keyboard instrument 21 includes a musical instrument body 23 having a performance unit 22 and a keyboard lid 24 that is rotatably attached to the musical instrument body 23 and opens and closes the performance unit 22. The musical instrument main body 23 has arms 25, 25 (only one is shown in FIG. 3) extending in the front-rear direction (left-right direction in FIG. 3) with a predetermined interval in the left-right direction. A performance unit 22 is provided between them. The performance unit 22 includes a keyboard (not shown) and an operation panel 26 provided behind the keyboard. The operation panel 26 has a large number of various switches 27 (only one is shown in FIG. 3), and these switches 27 are provided on an upper case 28 of the musical instrument main body constituting the outer shell of the upper part of the musical instrument main body 23. It is arranged so as to protrude slightly upward. The musical instrument main body upper case 28 extends in the left-right direction between the arms 25, 25, and is formed obliquely rearwardly rising switch support part 28a for supporting the switch 27, and obliquely rearwardly descending from the upper end of the switch support part 28a. When the keyboard lid 24 is opened and closed, the side cross section is formed in a mountain shape by the lid guide portion 28b for guiding the keyboard lid 24 while supporting the rear end portion from below.
[0003]
The keyboard lid 24 has a front keyboard lid 31 and a rear keyboard lid 32 that are rotatably connected to each other via a hinge 30. The left and right ends of the front keyboard cover 31 on the hinge 30 side are respectively connected to a pair of left and right arms 33 and 33 (only one is shown in FIG. 3). It can be rotated to the center. On the other hand, a musical score holder 34 is attached to the edge of the rear keyboard cover 32 on the hinge 30 side. As shown in FIG. 3 (a), the musical score holder 34 extends a predetermined length in the left-right direction, and a fixed portion 34a fixed to the back surface of the rear keyboard lid 32 and the fixed portion 34a are connected to the rear keyboard. The main body 34b extends a predetermined length obliquely forward and downward with respect to the lid 32 at a predetermined angle.
[0004]
In the keyboard instrument 21 configured in this way, as shown in FIG. 3A, the performance section 22 of the instrument main body 23 is placed with the front keyboard cover 31 and the rear keyboard cover 32 tilted forward and downward substantially in a straight line. Close to cover. In this case, the leading end of the musical score holder 34 is located near the upper portion of the switch 27 of the operation panel 26. When the front keyboard lid 31 is rotated rearward from this closed state, the rear keyboard lid 32 is moved rearward while slidingly contacting the upper end portion of the instrument body upper case 28 and the lid guide portion 28b. Then, as shown in FIG. 3B, when the arms 33 and 33 come into contact with the arm stoppers 35 and 35 (only one is shown in FIG. 3), the front keyboard cover 31 is attached to the upper case 28 of the instrument body. On the other hand, the rear keyboard lid 32 is tilted backward and obliquely behind the lid guide portion 28b, while standing behind the lid guide portion 28b and slightly tilted backward. Thereby, the performance part 22 of the musical instrument main body 23 is opened.
[0005]
Further, in this case, the music score receiver 34 is supported substantially horizontally by being supported from below by a music score receiver stopper 36 provided so as to span between the left and right arms 33 and 33 and the upper end of the musical instrument main body upper case 28. And it comes to be held firmly. As described above, when the keyboard cover 24 is opened, the front keyboard cover 31 can be used as a musical score stand, and the musical score receiver 34 is in a substantially horizontal posture. Then, as shown in FIG. 3B, the musical score F is set on the musical score stand device by the front keyboard lid 31 and the musical score holder 34, that is, with the musical score F placed on the musical score holder 34, the front It is possible to lean against the keyboard lid 31.
[0006]
[Problems to be solved by the invention]
In the keyboard musical instrument 21 having the music score receiver 34 as described above, the following problems occur. That is, when the keyboard lid 24 is in the closed state, as shown by a two-dot chain line in FIG. 4, if the rear end of the rear keyboard lid 32 is lifted by mistake or mischief, then the keyboard lid 32 is hinged. By rotating counterclockwise about 30, the musical score holder 34 fixed to the rear keyboard cover 32 is also rotated in the same direction, so that the tip of the music receiver 34 is turned on the switch 27 of the operation panel 26 from above. May interfere. In such a case, the switch 27 and the musical score holder 34 may be damaged. Of course, in order to prevent only the rear keyboard cover 32 from rotating when the keyboard cover 24 is in the closed state, it is possible to provide a rotation prevention mechanism 37 as shown by a two-dot chain line in FIG. is there. However, if such a rotation prevention mechanism 37 is provided in the keyboard instrument 21, the manufacturing cost of the keyboard instrument 21 increases accordingly.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a musical instrument stand device that can reduce the manufacturing cost and can be manufactured relatively easily. .
[0008]
[Means for Solving the Problems]
The musical instrument stand device according to the present invention is pivotally connected to each other, and has a front keyboard cover and a rear keyboard cover that cooperate to open and close the performance unit of the instrument body, It is attached to the instrument body so that it can rotate freely, and when it is rotated backward, it is released in a standing state. The rear keyboard cover is moved relative to the front keyboard cover as the front keyboard cover is rotated backward. A musical instrument stand device that is configured to open by rotating backward while rotating, and is configured by a front keyboard lid that is opened in a standing state, and a music stand for leaning the musical score; A musical score holder for placing a musical score, which is formed between the performance part of the instrument body and the open front keyboard lid, and the musical score holder extends in the front-rear direction, and a placing part for placing the musical score thereon , Projecting upward from the front end of the placement section and locking the lower end of the musical score And having a stop portion.
[0009]
According to this structure, when the front keyboard cover is rotated backward from the state in which the performance part of the instrument body is closed with the front keyboard cover and the rear keyboard cover, the front keyboard cover is opened with the performance part standing upright. Along with this, the rear keyboard lid moves backward while rotating with respect to the front keyboard lid, thereby opening the performance section. As described above, when the front keyboard cover is opened, the front keyboard cover functions as a music rest, while a music rest is formed between the musical instrument main body and the opened front keyboard cover. In addition, it is possible to set a music score on a music stand device constituted by a music score receiver. Therefore, according to the music stand device having the above-described configuration, since the music rest is formed directly on the instrument body, unlike the conventional music instrument, it is not necessary to attach the music rest to the keyboard lid, and the manufacturing cost can be reduced correspondingly. The music stand device can be manufactured relatively easily.
[0011]
In addition, when placing a musical score on a musical score holder , the musical score is placed on the placement portion and the lower end portion of the musical score is locked by the locking portion, so that the lower end portion of the musical score slides forward. Can be reliably prevented, and as a result, the musical score can be stably placed on the musical score holder.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an electronic organ to which a music stand device according to an embodiment of the present invention is applied. As shown in the figure, the electronic organ 1 includes an organ body 3 having a performance section 2 at the top, and a keyboard lid 4 that is pivotally attached to the top of the organ body 3 and opens and closes the performance section 2. I have. The organ body 3 is provided with a pair of left and right arms 5, 5 that are provided at predetermined intervals in the left-right direction and extend in the front-rear direction, and the performance section 2 is provided between the arms 5, 5. .
[0013]
The performance section 2 has a two-stage upper and lower keyboard 6 (upper keyboard 6a and lower keyboard 6b) and an operation panel 7 provided in an obliquely rearward state behind the upper keyboard 6a. The lower keyboard 6b is disposed at the front end of the organ body 3, while the upper keyboard 6a is disposed obliquely above and behind the lower keyboard 6b. The operation panel 7 includes a number of various switches 8a, a liquid crystal display 8b, and the like, which are arranged on an organ body upper case 9 that constitutes an outer shell of the upper part of the organ body 3. Note that, by operating these switches 8a at the time of performance, the tone color, rhythm, and the like of sounds generated from an acoustic device (not shown) are adjusted.
[0014]
The organ body upper case 9 is made of synthetic resin or the like, and extends in the left-right direction between the left and right arms 5, 5. As shown in FIG. 2 (a), the organ body upper case 9 extends obliquely upward and rearward, and slightly extends backward from the upper end of the switch support portion 9a to support the switch 8a and the like. A musical score holder 9b that extends downward and further backwards by a predetermined length, and a lid guide portion 9c that extends obliquely rearward and downward from the rear end of the musical score receiver 9b and guides the rear end portion when the keyboard cover 4 is opened and closed. Yes. The musical score holder 9b includes a substantially horizontal placing portion 9d, and an engaging portion 9e that is provided between the placing portion 9d and the switch support portion 9a and is formed to protrude upward. The musical score F can be placed on the placing portion 9d, and the lower end of the musical score F can be latched on the locking portion 9e. The musical score holder 9b is formed so as to be integrally formed when the organ body upper case 9 is manufactured.
[0015]
The keyboard cover 4 is connected via a hinge 10 so as to be rotatable about axes extending in the left-right direction, and mainly covers a front keyboard cover 11 that covers the keyboard 6 of the performance section 2 and a cover that mainly covers the operation panel 7. And a keyboard lid 12. The front keyboard cover 11 is formed in a horizontally long rectangular shape in a plan view, and is assembled along a front keyboard cover body 11a having a predetermined thickness and a rear side edge of the front keyboard cover body 11a along the same. And a mounting adapter 11b. On the other hand, the rear keyboard cover 12 has a horizontally long rectangular shape in the same manner as the front keyboard cover main body 11a, and the front keyboard cover main body 11a has a shorter front-rear dimension and the same horizontal dimension. It has a rear keyboard lid body 12a. Then, an outwardly convex mounting portion 12b is fixed to the rear surface of the front side edge portion of the rear keyboard lid body 12a. The hinge 10 is screwed to the mounting adapter 11b of the front keyboard cover 11 and the mounting part 12b of the rear keyboard cover 12, so that the front keyboard cover 11 and the rear keyboard cover 12 are rotatably connected to each other. Yes.
[0016]
The left and right ends of the mounting adapter 11b of the front keyboard lid 11 are respectively supported by a pair of left and right arms 13 and 13 attached to the upper part of the organ body 3 so as to be rotatable about a rotating shaft 13a. . Each arm 13 is made of a metal plate or the like, and a part thereof faces outward from a gap between the arm 5 and the organ body upper case 9, and that part is fixed to the mounting adapter 11 b of the front keyboard lid 11.
[0017]
In the electronic organ 1 configured as described above, when the keyboard cover 4 is in a closed state, as shown in FIG. 2A, the front keyboard cover 11 and the rear keyboard cover 12 are inclined in a straight line toward the front. Then, the performance section 2 of the organ body 3 is covered. When opening the keyboard lid 4 from this closed state, the keyboard lid 4 is rotated backward while lifting the front keyboard lid 11. Along with this, the rear keyboard lid 12 moves rearward while slidingly contacting the musical score holder 9b formed at the upper end of the organ body upper case 9 and the lid guide portion 9c. As the arms 13 and 13 come into contact with an arm stopper (not shown), the front keyboard cover 11 is slightly rearward above the cover guide portion 9c of the organ body upper case 9, as shown in FIG. Stand up in a collapsed state. On the other hand, the rear keyboard lid 12 is inclined obliquely backward and downward along the lid guide portion 9c.
[0018]
Thus, when the keyboard cover 4 is opened, the front keyboard cover 11 can be used as a music rest. In addition, the musical score holder 9b is located between the front keyboard cover 11 and the performance section 2 in front of it. Then, as shown in FIG. 2 (b), the music score F is set on the music score stand device composed of the front keyboard cover (music score stand) 11 and the music score holder 9b, that is, the music score F is set to the music score holder 9b. It is possible to lean on the front keyboard lid 11 in a state where the lower end portion of the musical score F is locked to the locking portion 9e.
[0019]
As described in detail above, according to the present embodiment, the music sheet receiver 9b is formed directly on the upper part of the organ body 3, that is, the upper case 9 of the organ body. There is no need to attach the device, and the manufacturing cost can be reduced correspondingly, and damage to the operation panel due to the conventional music score holder can be surely prevented. In addition, when the organ main body upper case 9 is manufactured, the musical score holder 9b is integrally formed in advance so that the musical score holder can be formed relatively easily.
[0020]
In addition, this invention can be implemented in various aspects, without being limited to the said embodiment described. For example, in the embodiment, the case where the present invention is applied to an electronic organ has been described, but the present invention is not limited to this, and can be applied to an electronic keyboard instrument such as an electronic piano or a synthesizer. The detailed configuration of the electronic organ 1 shown in the embodiment is merely an example, and can be changed as appropriate within the scope of the gist of the present invention.
[0021]
【The invention's effect】
As described above in detail, the music stand device for a keyboard musical instrument of the present invention has effects that the manufacturing cost can be reduced and that it can be relatively easily manufactured.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an electronic organ to which a music stand device according to an embodiment of the present invention is applied, showing a state in which a keyboard cover (a part of the front end portion is omitted) is opened.
2A and 2B are side sectional views showing the upper part of the electronic organ of FIG. 1, wherein FIG. 2A shows a state in which the keyboard lid is closed, and FIG. 2B shows a state in which the keyboard lid is opened.
FIGS. 3A and 3B are side sectional views showing an upper part of a keyboard instrument to which a conventional music stand device is applied, in which FIG. 3A shows a state in which the keyboard lid is closed, and FIG.
FIG. 4 is an explanatory diagram for explaining a state in which the music score holder of the music stand device interferes with the operation panel in the keyboard musical instrument of FIG. 3;
[Explanation of symbols]
1 Electronic organ (keyboard instrument)
2 Performance part 3 Organ body (instrument body)
4 Keyboard cover 6 Keyboard 9 Organ main body upper case 9a Switch support part 9b Music sheet receiver 9c Cover guide part 9d Placement part 9e Locking part 11 Front keyboard cover (musical rest)
12 Back keyboard cover F

Claims (1)

The front keyboard cover and the rear keyboard cover are connected to each other so as to be pivotable and open and close in cooperation with the performance section of the instrument body. The front keyboard lid is pivotally attached to the instrument body. The rear keyboard lid is moved rearward while rotating with respect to the front keyboard cover as the front keyboard cover is rotated rearward. A musical instrument stand device configured to be opened by
Consists of the front keyboard cover opened in the upright state, and a music stand for leaning up a musical score,
Formed between the performance section of the instrument body and the opened front keyboard lid, and a music score holder for placing a music score ,
The music rest is
A placement section that extends in the front-rear direction and places a musical score;
A music stand device for a keyboard instrument , comprising: a locking portion that protrudes upward from a front end of the placement portion and locks a lower end portion of the music score.

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